Divide and conquer

an efficient solution to highly multimoded photonic lanterns from multicore fibres

Sergio G. Leon-Saval*, Christopher H. Betters, Joel R. Salazar-Gil, Seong-Sik Min, Itandehui Gris-Sanchez, Tim A. Birks, Jon Lawrence, Roger Haynes, Dionne Haynes, Martin Roth, Sylvain Veilleux, Joss Bland-Hawthorn

*Corresponding author for this work

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

Photonic lanterns typically allow for single-mode action in a multimode fibre. Since their invention over a decade ago for applications in astrophotonics, they have found important uses in diverse fields of applied science. To date, large aperture highly-mulitmoded to single-mode lanterns have been difficult as fabrication techniques are not practical for mass replication. Here as a proof of concept, we demonstrate three different devices based on multicore fibre photonic lanterns with: 100µm core diameters; NAs = 0.16 and 0.15; and requiring 259 single-mode core system, specifically 7 multicore fibres each with 37 cores, instead of 259 individual single-mode fibres. The average insertion loss excluding coupling efficiencies is only 0.4dB (>91% transmission). This concept has numerous advantages, in particular, (i) it is a direct scaleable solution, (ii) eases imprinting of photonic functions, e.g. fibre Bragg gratings; and (iii) new approach for large-area optical fibre slicers for future large-aperture telescopes.

Original languageEnglish
Pages (from-to)17530-17540
Number of pages11
JournalOptics Express
Volume25
Issue number15
DOIs
Publication statusPublished - 24 Jul 2017
Externally publishedYes

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